The SM4F28A-MS-H is a high-performance Transient Voltage Suppressor (TVS) Diode manufactured by Formosa Microsemi. As an authorized distributor, Supreme Components International guarantees the authenticity and reliability of this component. This unidirectional TVS diode is designed to protect sensitive electronic circuits from voltage transients induced by lightning, electrostatic discharge (ESD), and inductive load switching. With a standoff voltage of 28V and a peak pulse power dissipation of 400W, the SM4F28A-MS-H effectively clamps transient voltages to safe levels, preventing damage to downstream components. Its compact DO-221AC (SMPC) package allows for easy integration into space-constrained applications. This diode is ideal for use in automotive, industrial, and consumer electronics applications where robust voltage surge protection is critical.